If you're looking to boost your Mustang's braking game without going overboard, the SS4+ rear brake system is a solid choice. This setup features the S4 4-piston caliper paired with a robust 13-inch 2-piece rotor that’s not just slotted and drilled for looks; it’s zinc plated to resist corrosion and keep things looking sharp. I’ve installed a few of these on my own rides, and I can tell you, they really deliver when it comes to stopping power.

One of the cool things about this system is the stainless steel brake hoses included. They’re built to last, and the calipers come with D.O.T. compliant dust and weather seals, so you don’t have to worry about dirt and grime messing up your performance. Plus, they use quality bearings along with NAS high-grade stainless hardware for the pre-assembled rotor, which means less hassle during installation.

Now, if you’re rolling with 17-inch wheels, this system is designed just for you. It’s like Baer took all the performance features of their bigger systems and packed them into a more compact setup. That’s perfect if you want to keep your 17s but still have the option to upgrade to larger wheels later without losing that stock look.

And let’s talk about fitment. This kit is made for the 1979-1984 Ford Mustang with 5-lug wheels, and it also fits the 1993 Ford Mustang SVT Cobra. So, if you’ve got one of those beauties, you’re in luck.

Here’s what you get with the SS4+: everything you need is in the box, including hoses, fittings, and park brake cables. The hat is made from 6061 T-6 billet aluminum, anodized black, and bolted to the rotor for extra durability. The high-grade U281 fine thread stainless hardware with captured nuts makes installation straightforward.

The S4 caliper is where the magic happens. It features four 10mm cross bolts for maximum stiffness, along with stainless steel abutments and noise suppression springs to keep things quiet. The hard anodized aluminum pistons are built to withstand the heat, and the internal crossover design ensures consistent performance. Plus, it meets all D.O.T. specs with dual seals for dust, weather, and pressure.

And let’s not forget about the aesthetics. The calipers come with a black powder coat finish, but if you want something unique, custom colors are available. You can also get these calipers for the front or rear to keep that cohesive look across your ride.

Best of all, everything is 100% made in the USA with US-sourced materials. So, if you’re ready to take your braking to the next level, the SS4+ might just be what you need.